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var baseMerge = require('./_baseMerge'), | |
createAssigner = require('./_createAssigner'); | |
/** | |
* This method is like `_.merge` except that it accepts `customizer` which | |
* is invoked to produce the merged values of the destination and source | |
* properties. If `customizer` returns `undefined`, merging is handled by the | |
* method instead. The `customizer` is invoked with six arguments: | |
* (objValue, srcValue, key, object, source, stack). | |
* | |
* **Note:** This method mutates `object`. | |
* | |
* @static | |
* @memberOf _ | |
* @since 4.0.0 | |
* @category Object | |
* @param {Object} object The destination object. | |
* @param {...Object} sources The source objects. | |
* @param {Function} customizer The function to customize assigned values. | |
* @returns {Object} Returns `object`. | |
* @example | |
* | |
* function customizer(objValue, srcValue) { | |
* if (_.isArray(objValue)) { | |
* return objValue.concat(srcValue); | |
* } | |
* } | |
* | |
* var object = { 'a': [1], 'b': [2] }; | |
* var other = { 'a': [3], 'b': [4] }; | |
* | |
* _.mergeWith(object, other, customizer); | |
* // => { 'a': [1, 3], 'b': [2, 4] } | |
*/ | |
var mergeWith = createAssigner(function(object, source, srcIndex, customizer) { | |
baseMerge(object, source, srcIndex, customizer); | |
}); | |
module.exports = mergeWith; | |